Can units be targeted by Gust in various movement scenarios, and what happens when a token is Gusted?

Ruling: Units moving to empty battlefields or starting showdowns can be Gusted during the open showdown window before battlefield conquest. Units moving to occupied battlefields (owned by that player) cannot be Gusted unless there's a move trigger creating a reaction window. Tokens disappear if Gusted to anywhere other than a base or battlefield.

Sequence:

• When a unit moves to an empty battlefield, an open showdown occurs before conquest
• During this showdown window, Gust can be played
• If the battlefield is already occupied by that player, no showdown occurs and no reaction window exists (unless a move trigger creates one)

Nuances:

• Tokens only persist on bases and battlefields; they disappear if moved elsewhere
• The term "battlefield" in the context of tokens includes both the base and battlefield zones